Remove support for v3 sig generation

6 files changed, 10 insertions, 112 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
index f240b5cc2..755d74ac2 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
@@ -64,7 +64,6 @@ public final class Constants {
         public static final String DEFAULT_FILE_COMPRESSION = "defaultFileCompression";
         public static final String PASSPHRASE_CACHE_TTL = "passphraseCacheTtl";
         public static final String LANGUAGE = "language";
-        public static final String FORCE_V3_SIGNATURES = "forceV3Signatures";
         public static final String KEY_SERVERS = "keyServers";
         public static final String KEY_SERVERS_DEFAULT_VERSION = "keyServersDefaultVersion";
         public static final String WRITE_VERSION_HEADER = "writeVersionHeader";
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java
index a0bac80aa..72e88d793 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/helper/Preferences.java
@@ -130,16 +130,6 @@ public class Preferences {
         editor.commit();
     }
 
-    public boolean getForceV3Signatures() {
-        return mSharedPreferences.getBoolean(Constants.Pref.FORCE_V3_SIGNATURES, false);
-    }
-
-    public void setForceV3Signatures(boolean value) {
-        SharedPreferences.Editor editor = mSharedPreferences.edit();
-        editor.putBoolean(Constants.Pref.FORCE_V3_SIGNATURES, value);
-        editor.commit();
-    }
-
     public boolean isFirstTime() {
         return mSharedPreferences.getBoolean(Constants.Pref.FIRST_TIME, true);
     }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java
index b0e546662..263b0c5bb 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncrypt.java
@@ -27,7 +27,6 @@ import org.spongycastle.openpgp.PGPException;
 import org.spongycastle.openpgp.PGPLiteralData;
 import org.spongycastle.openpgp.PGPLiteralDataGenerator;
 import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPV3SignatureGenerator;
 import org.spongycastle.openpgp.operator.jcajce.JcePBEKeyEncryptionMethodGenerator;
 import org.spongycastle.openpgp.operator.jcajce.JcePGPDataEncryptorBuilder;
 import org.sufficientlysecure.keychain.Constants;
@@ -68,7 +67,6 @@ public class PgpSignEncrypt {
     private int mSymmetricEncryptionAlgorithm;
     private long mSignatureMasterKeyId;
     private int mSignatureHashAlgorithm;
-    private boolean mSignatureForceV3;
     private String mSignaturePassphrase;
     private boolean mEncryptToSigner;
     private boolean mCleartextInput;
@@ -99,7 +97,6 @@ public class PgpSignEncrypt {
         this.mSymmetricEncryptionAlgorithm = builder.mSymmetricEncryptionAlgorithm;
         this.mSignatureMasterKeyId = builder.mSignatureMasterKeyId;
         this.mSignatureHashAlgorithm = builder.mSignatureHashAlgorithm;
-        this.mSignatureForceV3 = builder.mSignatureForceV3;
         this.mSignaturePassphrase = builder.mSignaturePassphrase;
         this.mEncryptToSigner = builder.mEncryptToSigner;
         this.mCleartextInput = builder.mCleartextInput;
@@ -122,7 +119,6 @@ public class PgpSignEncrypt {
         private int mSymmetricEncryptionAlgorithm = 0;
         private long mSignatureMasterKeyId = Constants.key.none;
         private int mSignatureHashAlgorithm = 0;
-        private boolean mSignatureForceV3 = false;
         private String mSignaturePassphrase = null;
         private boolean mEncryptToSigner = false;
         private boolean mCleartextInput = false;
@@ -179,11 +175,6 @@ public class PgpSignEncrypt {
             return this;
         }
 
-        public Builder setSignatureForceV3(boolean signatureForceV3) {
-            mSignatureForceV3 = signatureForceV3;
-            return this;
-        }
-
         public Builder setSignaturePassphrase(String signaturePassphrase) {
             mSignaturePassphrase = signaturePassphrase;
             return this;
@@ -349,19 +340,13 @@ public class PgpSignEncrypt {
 
         /* Initialize signature generator object for later usage */
         PGPSignatureGenerator signatureGenerator = null;
-        PGPV3SignatureGenerator signatureV3Generator = null;
         if (enableSignature) {
             updateProgress(R.string.progress_preparing_signature, 4, 100);
 
             try {
                 boolean cleartext = mCleartextInput && mEnableAsciiArmorOutput && !enableEncryption;
-                if (mSignatureForceV3) {
-                    signatureV3Generator = signingKey.getV3SignatureGenerator(
-                            mSignatureHashAlgorithm, cleartext);
-                } else {
-                    signatureGenerator = signingKey.getSignatureGenerator(
-                            mSignatureHashAlgorithm, cleartext);
-                }
+                signatureGenerator = signingKey.getSignatureGenerator(
+                        mSignatureHashAlgorithm, cleartext);
             } catch (PgpGeneralException e) {
                 // TODO throw correct type of exception (which shouldn't be PGPException)
                 throw new KeyExtractionException();
@@ -388,11 +373,7 @@ public class PgpSignEncrypt {
             }
 
             if (enableSignature) {
-                if (mSignatureForceV3) {
-                    signatureV3Generator.generateOnePassVersion(false).encode(bcpgOut);
-                } else {
-                    signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
-                }
+                signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
             }
 
             PGPLiteralDataGenerator literalGen = new PGPLiteralDataGenerator();
@@ -408,11 +389,7 @@ public class PgpSignEncrypt {
 
                 // update signature buffer if signature is requested
                 if (enableSignature) {
-                    if (mSignatureForceV3) {
-                        signatureV3Generator.update(buffer, 0, length);
-                    } else {
-                        signatureGenerator.update(buffer, 0, length);
-                    }
+                    signatureGenerator.update(buffer, 0, length);
                 }
 
                 alreadyWritten += length;
@@ -435,11 +412,7 @@ public class PgpSignEncrypt {
             final BufferedReader reader = new BufferedReader(new InputStreamReader(in));
 
             // update signature buffer with first line
-            if (mSignatureForceV3) {
-                processLineV3(reader.readLine(), armorOut, signatureV3Generator);
-            } else {
-                processLine(reader.readLine(), armorOut, signatureGenerator);
-            }
+            processLine(reader.readLine(), armorOut, signatureGenerator);
 
             // TODO: progress: fake annealing?
             while (true) {
@@ -454,13 +427,8 @@ public class PgpSignEncrypt {
                 armorOut.write(NEW_LINE);
 
                 // update signature buffer with input line
-                if (mSignatureForceV3) {
-                    signatureV3Generator.update(NEW_LINE);
-                    processLineV3(line, armorOut, signatureV3Generator);
-                } else {
-                    signatureGenerator.update(NEW_LINE);
-                    processLine(line, armorOut, signatureGenerator);
-                }
+                signatureGenerator.update(NEW_LINE);
+                processLine(line, armorOut, signatureGenerator);
             }
 
             armorOut.endClearText();
@@ -480,11 +448,7 @@ public class PgpSignEncrypt {
                 bcpgOut = new BCPGOutputStream(out);
             }
 
-            if (mSignatureForceV3) {
-                signatureV3Generator.generateOnePassVersion(false).encode(bcpgOut);
-            } else {
-                signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
-            }
+            signatureGenerator.generateOnePassVersion(false).encode(bcpgOut);
 
             PGPLiteralDataGenerator literalGen = new PGPLiteralDataGenerator();
             pOut = literalGen.open(bcpgOut, PGPLiteralData.BINARY, mOriginalFilename, new Date(),
@@ -496,11 +460,7 @@ public class PgpSignEncrypt {
             while ((length = in.read(buffer)) > 0) {
                 pOut.write(buffer, 0, length);
 
-                if (mSignatureForceV3) {
-                    signatureV3Generator.update(buffer, 0, length);
-                } else {
-                    signatureGenerator.update(buffer, 0, length);
-                }
+                signatureGenerator.update(buffer, 0, length);
 
                 alreadyWritten += length;
                 if (mData.getSize() > 0) {
@@ -517,11 +477,7 @@ public class PgpSignEncrypt {
 
         if (enableSignature) {
             updateProgress(R.string.progress_generating_signature, 95, 100);
-            if (mSignatureForceV3) {
-                signatureV3Generator.generate().encode(pOut);
-            } else {
-                signatureGenerator.generate().encode(pOut);
-            }
+            signatureGenerator.generate().encode(pOut);
         }
 
         // closing outputs
@@ -570,30 +526,4 @@ public class PgpSignEncrypt {
         pSignatureGenerator.update(data);
     }
 
-    private static void processLineV3(final String pLine, final ArmoredOutputStream pArmoredOutput,
-                                      final PGPV3SignatureGenerator pSignatureGenerator)
-            throws IOException, SignatureException {
-
-        if (pLine == null) {
-            return;
-        }
-
-        final char[] chars = pLine.toCharArray();
-        int len = chars.length;
-
-        while (len > 0) {
-            if (!Character.isWhitespace(chars[len - 1])) {
-                break;
-            }
-            len--;
-        }
-
-        final byte[] data = pLine.substring(0, len).getBytes("UTF-8");
-
-        if (pArmoredOutput != null) {
-            pArmoredOutput.write(data);
-        }
-        pSignatureGenerator.update(data);
-    }
-
 }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
index 492ade7c3..3541dad98 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
@@ -191,7 +191,6 @@ public class OpenPgpService extends RemoteService {
                 builder.setEnableAsciiArmorOutput(asciiArmor)
                         .setVersionHeader(PgpHelper.getVersionForHeader(this))
                         .setSignatureHashAlgorithm(accSettings.getHashAlgorithm())
-                        .setSignatureForceV3(false)
                         .setSignatureMasterKeyId(accSettings.getKeyId())
                         .setSignaturePassphrase(passphrase);
 
@@ -299,7 +298,6 @@ public class OpenPgpService extends RemoteService {
 
                     // sign and encrypt
                     builder.setSignatureHashAlgorithm(accSettings.getHashAlgorithm())
-                            .setSignatureForceV3(false)
                             .setSignatureMasterKeyId(accSettings.getKeyId())
                             .setSignaturePassphrase(passphrase);
                 } else {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
index d1d848066..d6c470e11 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/KeychainIntentService.java
@@ -257,7 +257,6 @@ public class KeychainIntentService extends IntentService
                             .setCompressionId(compressionId)
                             .setSymmetricEncryptionAlgorithm(
                                     Preferences.getPreferences(this).getDefaultEncryptionAlgorithm())
-                            .setSignatureForceV3(Preferences.getPreferences(this).getForceV3Signatures())
                             .setEncryptionMasterKeyIds(encryptionKeyIds)
                             .setSymmetricPassphrase(symmetricPassphrase)
                             .setSignatureMasterKeyId(signatureKeyId)
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java
index 5bef6cc9f..de3236d35 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/PreferencesActivity.java
@@ -119,9 +119,6 @@ public class PreferencesActivity extends PreferenceActivity {
             initializeAsciiArmor(
                     (CheckBoxPreference) findPreference(Constants.Pref.DEFAULT_ASCII_ARMOR));
 
-            initializeForceV3Signatures(
-                    (CheckBoxPreference) findPreference(Constants.Pref.FORCE_V3_SIGNATURES));
-
             initializeWriteVersionHeader(
                     (CheckBoxPreference) findPreference(Constants.Pref.WRITE_VERSION_HEADER));
 
@@ -266,9 +263,6 @@ public class PreferencesActivity extends PreferenceActivity {
             initializeAsciiArmor(
                     (CheckBoxPreference) findPreference(Constants.Pref.DEFAULT_ASCII_ARMOR));
 
-            initializeForceV3Signatures(
-                    (CheckBoxPreference) findPreference(Constants.Pref.FORCE_V3_SIGNATURES));
-
             initializeWriteVersionHeader(
                     (CheckBoxPreference) findPreference(Constants.Pref.WRITE_VERSION_HEADER));
         }
@@ -392,18 +386,6 @@ public class PreferencesActivity extends PreferenceActivity {
         });
     }
 
-    private static void initializeForceV3Signatures(final CheckBoxPreference mForceV3Signatures) {
-        mForceV3Signatures.setChecked(sPreferences.getForceV3Signatures());
-        mForceV3Signatures
-                .setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
-                    public boolean onPreferenceChange(Preference preference, Object newValue) {
-                        mForceV3Signatures.setChecked((Boolean) newValue);
-                        sPreferences.setForceV3Signatures((Boolean) newValue);
-                        return false;
-                    }
-                });
-    }
-
     private static void initializeWriteVersionHeader(final CheckBoxPreference mWriteVersionHeader) {
         mWriteVersionHeader.setChecked(sPreferences.getWriteVersionHeader());
         mWriteVersionHeader.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {